Klinefelter syndrome is defined as a chromosomal disorder found among males that is caused by an extra X sex chromosome and that is characterized by infertility and mild mental retardation. Moreover, Klinefelter syndrome is a genetic disorder in men in which there are three (3) sex chromosomes , XXY, instead of two (2) which is characterized by small testes, low sperm production, breast enlargement, and absence of facial and body hair.
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